mybatis中批量修改字段

在MyBatis中，批量修改字段可以使用动态SQL语句实现。根据引用和引用的内容，你可以使用<update>标签结合<foreach>标签来拼接多条SQL语句。例如：

<update id="batchUpdate" parameterType="java.util.List">
  UPDATE table_name
  <trim prefix="SET" suffixOverrides=",">
    <trim prefix="column_name = CASE" suffix="END,">
      <foreach collection="list" item="item" index="index">
        WHEN id = #{item.id} THEN #{item.columnName}
      </foreach>
    </trim>
  </trim>
  WHERE id IN
  <foreach collection="list" index="index" item="item" separator="," open="(" close=")">
    #{item.id}
  </foreach>
</update>

注意，上述示例中的table_name和column_name需要根据你的实际情况进行替换。

这样，你就可以使用该&lt;update&gt;标签来实现批量修改字段的操作了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [Mybatis foreach批量修改多字段语句](https://blog.csdn.net/weixin_46102888/article/details/123451635)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *3* [Java企业报表管理系统源码](https://download.csdn.net/download/m0_55416028/88269629)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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